Cooling jacket for exhaust valve and thermostat and cooling bottle

Abstract

A coolant bottle defines a first chamber and a second chamber fluidly coupled to the first chamber at a valve seat. The first chamber is fluidly coupled to a source of heated engine cooling fluid, while the second chamber is fluidly coupled to an engine water pump. A thermally responsive actuator is disposed within the first chamber, and has a thermally actuated sliding member having a valve seat engaging surface. The thermally actuated sliding member is movable from a first open position to a second closed position when the coolant is above a first temperature. The thermally responsive actuator is disposed within the first chamber.

What is claimed is: 
     
       1. A vehicle engine comprising:
 an engine head defining a fluid accepting cooling passage; and 
 an engine block fluidly coupled to the engine head, the engine block defining a combustion chamber and exhaust ports and a first cooling path which branches into a first path and a second path, the first path surrounding the exhaust ports and the second path surrounding the combustion chamber, the first path passing cooling fluid to the engine head after passing the exhaust ports. 
 
     
     
       2. The vehicle engine according to  claim 1  wherein the second path passes cooling fluid into the engine head after passing the combustion chamber. 
     
     
       3. The vehicle engine according to  claim 1  wherein the first path passes cooling fluid out of the engine head into the cooling system. 
     
     
       4. The vehicle engine according to  claim 1  wherein the fluid passing through the first path represents 40% to 60% of the coolant flow. 
     
     
       5. The vehicle engine according to  claim 1  wherein the fluid has a fluid velocity of between 2.1 and 3.0 m/s when the fluid is passing the exhaust ports. 
     
     
       6. The vehicle engine of  claim 1 , further comprising:
 a coolant reservoir bottle configured to be placed within a vehicle cooling system, 
 wherein the coolant reservoir bottle is fluidly coupled to engine head. 
 
     
     
       7. The vehicle engine of  claim 6 , wherein the engine head is a source of heated engine cooling fluid. 
     
     
       8. The vehicle engine of  claim 6 , wherein the coolant reservoir bottle comprises:
 a coolant bottle defining a first chamber fluidly coupled to a second chamber through an aperture, the aperture having a valve seat, the first chamber being fluidly coupled to a source of heated engine cooling fluid, the second chamber being fluidly coupled to an engine water pump; 
 a thermally responsive actuator disposed within the first chamber having a thermally actuated sliding member with a valve seat engaging surface; 
 wherein the thermally actuated sliding member is movable from a first position to a second position, wherein the second position includes the thermally actuated sliding member having an engaging surface disposed against the valve seat. 
 
     
     
       9. The vehicle engine of  claim 8 , wherein the coolant bottle further includes:
 a third chamber; and 
 a conical swirl plate member between the first chamber and the third chamber. 
 
     
     
       10. A vehicle engine comprising:
 an engine head; and 
 an engine block fluidly coupled to the engine head, wherein the engine block defines a combustion chamber and exhaust ports; 
 an interior cooling chamber defined in both the engine block and the engine head that accepts fluid flow; and 
 a first cooling path in the interior cooling chamber that divides into a first flow path and a second flow path; 
 wherein a first velocity of a fluid at an entrance into the interior cooling chamber is greater than 2.1 meters per second (m/s); 
 wherein a second velocity of the fluid at an entrance to the second flow path is greater than 2.4 m/s. 
 
     
     
       11. The vehicle engine of  claim 10 , wherein the second velocity is between 2.4 m/s and 3 m/s. 
     
     
       12. The vehicle engine of  claim 10 , wherein the first flow path surrounds the exhaust ports;
 wherein the fluid passes to the engine head after passing the exhaust ports. 
 
     
     
       13. The vehicle engine of  claim 10 , wherein the second flow path surrounds the combustion chamber;
 wherein the fluid passes to the engine head after passing the combustion chamber. 
 
     
     
       14. The vehicle engine of  claim 10 , further comprising:
 a coolant reservoir bottle fluidly coupled to the interior cooling chamber. 
 
     
     
       15. The vehicle engine of  claim 14 , wherein the coolant reservoir bottle comprises:
 a first chamber fluidly coupled to a second chamber through an aperture; 
 a valve seat at the aperture; 
 a thermally responsive actuator disposed within the first chamber having a thermally actuated sliding member with a valve seat engaging surface; 
 wherein the thermally actuated sliding member is movable from a first position to a second position, wherein the second position includes the thermally actuated sliding member having an engaging surface disposed against the valve seat. 
 
     
     
       16. The vehicle engine of  claim 15 , wherein the first chamber is fluidly coupled to a source of heated engine cooling fluid and the second chamber is fluidly coupled to an engine water pump. 
     
     
       17. A vehicle engine comprising:
 an engine head; and 
 an engine block fluidly coupled to the engine head, wherein the engine block defines a combustion chamber and exhaust ports; 
 an interior cooling chamber defined in both the engine block and the engine head that accepts fluid flow; and 
 a first cooling path in the vehicle engine that divides into a first flow path and a second flow path; 
 wherein the first flow path directs a first portion of the fluid flow directly about the exhaust ports; 
 wherein the second flow path directs a second portion of the fluid flow directly about the combustion chamber. 
 
     
     
       18. The vehicle engine of  claim 17 , wherein both the first flow path and the second flow path combine to form a combined flow path that passes the engine head after the respective exhaust ports and the combustion chamber. 
     
     
       19. The vehicle engine of  claim 18 , wherein the heated combined fluid flow in the combined flow path becomes a source of heated engine cooling fluid. 
     
     
       20. The vehicle engine of  claim 19 , further comprising:
 a coolant reservoir bottle, fluidly coupled to the interior cooling chamber, which comprises:
 (i) a first chamber fluidly coupled to a second chamber through an aperture, 
 (ii) a valve seat at the aperture, and 
 (iii) a thermally responsive actuator disposed within the first chamber having a thermally actuated sliding member with a valve seat engaging surface; 
 
 wherein the first chamber is fluidly coupled to the source of heated engine cooling fluid and the second chamber is fluidly coupled to an engine water pump.